1 files changed, 234 insertions, 0 deletions
diff --git a/src/spdk/dpdk/app/test/test_alarm.c b/src/spdk/dpdk/app/test/test_alarm.c
new file mode 100644
index 000000000..951b7f07b
--- /dev/null
+++ b/src/spdk/dpdk/app/test/test_alarm.c
@@ -0,0 +1,234 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+
+#include <rte_common.h>
+#include <rte_cycles.h>
+#include <rte_interrupts.h>
+#include <rte_atomic.h>
+#include <rte_alarm.h>
+
+#include "test.h"
+
+#define US_PER_MS 1000
+
+#define RTE_TEST_ALARM_TIMEOUT 10 /* ms */
+#define RTE_TEST_CHECK_PERIOD   3 /* ms */
+#define RTE_TEST_MAX_REPEAT    20
+
+static volatile int flag;
+
+static void
+test_alarm_callback(void *cb_arg)
+{
+	flag = 1;
+	printf("Callback setting flag - OK. [cb_arg = %p]\n", cb_arg);
+}
+
+static rte_atomic32_t cb_count;
+
+static void
+test_multi_cb(void *arg)
+{
+	rte_atomic32_inc(&cb_count);
+	printf("In %s - arg = %p\n", __func__, arg);
+}
+
+static volatile int recursive_error = 0;
+
+static void
+test_remove_in_callback(void *arg)
+{
+	printf("In %s - arg = %p\n", __func__, arg);
+	if (rte_eal_alarm_cancel(test_remove_in_callback, arg) ||
+			rte_eal_alarm_cancel(test_remove_in_callback, (void *)-1)) {
+		printf("Error - cancelling callback from within function succeeded!\n");
+		recursive_error = 1;
+	}
+	flag = (int)((uintptr_t)arg);
+}
+
+static volatile int flag_2;
+
+static void
+test_remove_in_callback_2(void *arg)
+{
+	if (rte_eal_alarm_cancel(test_remove_in_callback_2, arg) || rte_eal_alarm_cancel(test_remove_in_callback_2, (void *)-1)) {
+		printf("Error - cancelling callback of test_remove_in_callback_2\n");
+		return;
+	}
+	flag_2 = 1;
+}
+
+static int
+test_multi_alarms(void)
+{
+	int rm_count = 0;
+	int count = 0;
+	cb_count.cnt = 0;
+
+	printf("Expect 6 callbacks in order...\n");
+	/* add two alarms in order */
+	rte_eal_alarm_set(10 * US_PER_MS, test_multi_cb, (void *)1);
+	rte_eal_alarm_set(20 * US_PER_MS, test_multi_cb, (void *)2);
+
+	/* now add in reverse order */
+	rte_eal_alarm_set(60 * US_PER_MS, test_multi_cb, (void *)6);
+	rte_eal_alarm_set(50 * US_PER_MS, test_multi_cb, (void *)5);
+	rte_eal_alarm_set(40 * US_PER_MS, test_multi_cb, (void *)4);
+	rte_eal_alarm_set(30 * US_PER_MS, test_multi_cb, (void *)3);
+
+	/* wait for expiry */
+	rte_delay_ms(65);
+	if (cb_count.cnt != 6) {
+		printf("Missing callbacks\n");
+		/* remove any callbacks that might remain */
+		rte_eal_alarm_cancel(test_multi_cb, (void *)-1);
+		return -1;
+	}
+
+	cb_count.cnt = 0;
+	printf("Expect only callbacks with args 1 and 3...\n");
+	/* Add 3 flags, then delete one */
+	rte_eal_alarm_set(30 * US_PER_MS, test_multi_cb, (void *)3);
+	rte_eal_alarm_set(20 * US_PER_MS, test_multi_cb, (void *)2);
+	rte_eal_alarm_set(10 * US_PER_MS, test_multi_cb, (void *)1);
+	rm_count = rte_eal_alarm_cancel(test_multi_cb, (void *)2);
+
+	rte_delay_ms(35);
+	if (cb_count.cnt != 2 || rm_count != 1) {
+		printf("Error: invalid flags count or alarm removal failure"
+				" -  flags value = %d, expected = %d\n",
+				(int)cb_count.cnt, 2);
+		/* remove any callbacks that might remain */
+		rte_eal_alarm_cancel(test_multi_cb, (void *)-1);
+		return -1;
+	}
+
+	printf("Testing adding and then removing multiple alarms\n");
+	/* finally test that no callbacks are called if we delete them all*/
+	rte_eal_alarm_set(10 * US_PER_MS, test_multi_cb, (void *)1);
+	rte_eal_alarm_set(10 * US_PER_MS, test_multi_cb, (void *)2);
+	rte_eal_alarm_set(10 * US_PER_MS, test_multi_cb, (void *)3);
+	rm_count = rte_eal_alarm_cancel(test_alarm_callback, (void *)-1);
+	if (rm_count != 0) {
+		printf("Error removing non-existant alarm succeeded\n");
+		rte_eal_alarm_cancel(test_multi_cb, (void *) -1);
+		return -1;
+	}
+	rm_count = rte_eal_alarm_cancel(test_multi_cb, (void *) -1);
+	if (rm_count != 3) {
+		printf("Error removing all pending alarm callbacks\n");
+		return -1;
+	}
+
+	/* Test that we cannot cancel an alarm from within the callback itself
+	 * Also test that we can cancel head-of-line callbacks ok.*/
+	flag = 0;
+	recursive_error = 0;
+	rte_eal_alarm_set(10 * US_PER_MS, test_remove_in_callback, (void *)1);
+	rte_eal_alarm_set(20 * US_PER_MS, test_remove_in_callback, (void *)2);
+	rm_count = rte_eal_alarm_cancel(test_remove_in_callback, (void *)1);
+	if (rm_count != 1) {
+		printf("Error cancelling head-of-list callback\n");
+		return -1;
+	}
+	rte_delay_ms(15);
+	if (flag != 0) {
+		printf("Error, cancelling head-of-list leads to premature callback\n");
+		return -1;
+	}
+
+	while (flag != 2 && count++ < RTE_TEST_MAX_REPEAT)
+		rte_delay_ms(10);
+
+	if (flag != 2) {
+		printf("Error - expected callback not called\n");
+		rte_eal_alarm_cancel(test_remove_in_callback, (void *)-1);
+		return -1;
+	}
+	if (recursive_error == 1)
+		return -1;
+
+	/* Check if it can cancel all for the same callback */
+	printf("Testing canceling all for the same callback\n");
+	flag_2 = 0;
+	rte_eal_alarm_set(10 * US_PER_MS, test_remove_in_callback, (void *)1);
+	rte_eal_alarm_set(20 * US_PER_MS, test_remove_in_callback_2, (void *)2);
+	rte_eal_alarm_set(30 * US_PER_MS, test_remove_in_callback_2, (void *)3);
+	rte_eal_alarm_set(40 * US_PER_MS, test_remove_in_callback, (void *)4);
+	rm_count = rte_eal_alarm_cancel(test_remove_in_callback_2, (void *)-1);
+	if (rm_count != 2) {
+		printf("Error, cannot cancel all for the same callback\n");
+		return -1;
+	}
+	rm_count = rte_eal_alarm_cancel(test_remove_in_callback, (void *)-1);
+	if (rm_count != 2) {
+		printf("Error, cannot cancel all for the same callback\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int
+test_alarm(void)
+{
+	int count = 0;
+#ifdef RTE_EXEC_ENV_FREEBSD
+	printf("The alarm API is not supported on FreeBSD\n");
+	return 0;
+#endif
+	/* check if the callback will be called */
+	printf("check if the callback will be called\n");
+	flag = 0;
+	if (rte_eal_alarm_set(RTE_TEST_ALARM_TIMEOUT * US_PER_MS,
+			test_alarm_callback, NULL) < 0) {
+		printf("fail to set alarm callback\n");
+		return -1;
+	}
+	while (flag == 0 && count++ < RTE_TEST_MAX_REPEAT)
+		rte_delay_ms(RTE_TEST_CHECK_PERIOD);
+
+	if (flag == 0){
+		printf("Callback not called\n");
+		return -1;
+	}
+
+	/* check if it will fail to set alarm with wrong us value */
+	printf("check if it will fail to set alarm with wrong ms values\n");
+	if (rte_eal_alarm_set(0, test_alarm_callback,
+						NULL) >= 0) {
+		printf("should not be successful with 0 us value\n");
+		return -1;
+	}
+	if (rte_eal_alarm_set(UINT64_MAX - 1, test_alarm_callback,
+						NULL) >= 0) {
+		printf("should not be successful with (UINT64_MAX-1) us value\n");
+		return -1;
+	}
+
+	/* check if it will fail to set alarm with null callback parameter */
+	printf("check if it will fail to set alarm with null callback parameter\n");
+	if (rte_eal_alarm_set(RTE_TEST_ALARM_TIMEOUT, NULL, NULL) >= 0) {
+		printf("should not be successful to set alarm with null callback parameter\n");
+		return -1;
+	}
+
+	/* check if it will fail to remove alarm with null callback parameter */
+	printf("check if it will fail to remove alarm with null callback parameter\n");
+	if (rte_eal_alarm_cancel(NULL, NULL) == 0) {
+		printf("should not be successful to remove alarm with null callback parameter");
+		return -1;
+	}
+
+	if (test_multi_alarms() != 0)
+		return -1;
+
+	return 0;
+}
+
+REGISTER_TEST_COMMAND(alarm_autotest, test_alarm);